CN219482215U - Tail gas purifying device of tubular furnace - Google Patents

Abstract

The utility model discloses a tail gas purification device of a tube furnace, which comprises a purification box, a denitration chamber and a impurity removal chamber, wherein a disassembly structure is arranged on the inner wall of one side of the purification box, a water tank is fixed on one side of the disassembly structure, the denitration chamber is arranged in the purification box, and a material scattering mechanism is arranged in the denitration chamber. According to the utility model, the alkaline dry powder is poured into the first rotary table through the material guide opening to be filled, and then the continuously-introduced dry powder sequentially passes through the first guide pipe, the second guide pipe and the third guide pipe to fill and stop the second rotary table, the third rotary table and the fourth rotary table respectively, and the first rotary table, the second rotary table, the third rotary table and the fourth rotary table are driven to rotate through the rotating shaft by starting the servo motor, so that the alkaline dry powder contained in the device can be conveniently and uniformly scattered into the air, the material scattering convenience function of the device is realized, the functionality of the device is improved, the denitration effect is conveniently ensured, and the direct introduction accumulation of the alkaline dry powder and insufficient contact between tail gas are prevented.

Description

Tail gas purifying device of tubular furnace

Technical Field

The utility model relates to the technical field of tail gas purification, in particular to a tail gas purification device of a tube furnace.

Background

The tube furnace is mainly applied to various industries such as metallurgy, glass, heat treatment, lithium battery anode and cathode materials, new energy, grinding tools and the like, and professional equipment for measuring materials under certain air temperature conditions has the characteristics of simple furnace structure, easy operation, convenient control and continuous production, and in the use process of the tube furnace, in order to avoid direct exhaust of tail gas to pollute the environment, a tail gas purifying device is necessary, and the device can purify the tail gas to a standard capable of being discharged and then discharge the tail gas;

chinese patent grant publication No. CN206617957U, publication No. 2017, 11 and 07, discloses a phosphorus furnace tail gas purifying and recovering device. Solves the problems of purifying and recycling the tail gas of the phosphorus furnace. The utility model provides a phosphorus stove tail gas purification recovery unit, includes filtration sedimentation pipe, fan, gas wash jar, combustion chamber, heat exchanger and blast pipe that link gradually, and the fan is located between filtration sedimentation pipe and the gas wash jar. The design of the inclined tube is utilized to well solve the problem that a large amount of dust is easily taken away by the tail gas discharged from the top, the dust content of the tail gas is reduced, the treatment difficulty is reduced, meanwhile, when the tail gas enters the vertical filtering sedimentation tube through writing, the tail gas is forcedly filtered, and the dust is filtered to fall into the bottom of the filtering sedimentation tube to be accumulated, so that the damage of the dust in the tail gas to later-stage equipment is reduced, and the service life is prolonged;

the prior art scheme has the following defects: among the above-mentioned technical scheme, the device has the defect of the even bulk cargo of inconvenience when using, can make the alkaline dry powder that purifier needs to use like this can only directly introduce the inside of denitration chamber through the guide mouth, because direct introduction of alkaline dry powder falls in the denitration chamber bottom, leads to it can not fully contact with the tail gas through the edulcoration room and mixes, seriously influences the effect to the tail gas denitration to the practicality that makes the device reduces.

Disclosure of Invention

First, the technical problem to be solved

The utility model aims to provide a tubular furnace tail gas purifying device which aims to solve the problems in the background technology.

(II) summary of the utility model

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a tubular furnace tail gas purification device, includes purifying box, denitration chamber and edulcoration room, be provided with the dismantlement structure on the inner wall of purifying box one side, and one side of dismantlement structure is fixed with the water tank, all be fixed with first baffle on the inner wall of purifying box, and the air duct is installed on the top of first baffle one side, and one side of air duct is connected with the hose, the denitration chamber has been seted up to the inside of purifying box, and the inside of denitration chamber is provided with the broadcast mechanism, the edulcoration room has been seted up to the inside of purifying box one side, the bottom of edulcoration room one side is fixed with the intake pipe, and the internally mounted of intake pipe has the negative-pressure fan, the internally mounted of edulcoration room has the filter screen, and one side of filter screen installs the second baffle, the leakage fluid dram is installed to one end of purifying box bottom, the water pump is installed on the top of purifying box one side, the top of purifying box opposite side is fixed with the gas vent, one side of the water pump is connected with a folding pipe, one side of the top end of the water pump is connected with a water pipe, the bottom end of the water pipe is provided with an atomizing nozzle, the top end of the purifying box is fixedly provided with a material guiding port, the material scattering mechanism comprises a servo motor, a rotating shaft, a first rotating disk, a first guide pipe, a second rotating disk, a second guide pipe, a third rotating disk, a third guide pipe and a fourth rotating disk, the servo motor is arranged at the top end of the purifying box, the bottom end of the servo motor is provided with the rotating shaft, the outer side of the rotating shaft is fixedly provided with the first rotating disk, the inner side of the first rotating disk is fixedly provided with the first guide pipe, the bottom end of the first guide pipe is provided with the second rotating disk, the inner side of the second rotating disk is fixedly provided with the second guide pipe, the bottom end of the second guide pipe is provided with the third rotating disk, and the inner side of the third rotating disk is fixedly provided with the third guide pipe, and a fourth rotary table is arranged at the bottom end of the third guide pipe.

By using the tubular furnace tail gas purification device, alkaline dry powder is poured into the first rotary table through the material guide opening to be filled, so that the continuously-introduced dry powder enters the second rotary table through the first guide pipe, the continuously-introduced redundant dry powder is introduced into the third rotary table through the second guide pipe by the second rotary table which is filled with the dry powder, and then the third rotary table is introduced into the fourth rotary table through the third guide pipe until the alkaline dry powder is respectively filled in the first rotary table, the second rotary table, the third rotary table and the fourth rotary table to stop after the first rotary table, the second rotary table, the third rotary table and the fourth rotary table are checked through the visual window on the purification box, the first rotary table, the second rotary table, the third rotary table and the fourth rotary table are driven to rotate through the rotary shaft by starting the servo motor, the alkaline dry powder contained in the interior is uniformly and rotated to be scattered out, the alkaline dry powder is fully contacted with tail gas after impurity removal, and therefore the tail gas denitration effect is guaranteed.

Preferably, the dismounting structure comprises a connecting block, a sliding seat, a fixing block, a connecting pipe and a hand wheel, wherein the connecting block is fixed at the top ends of the two sides of the water tank, the sliding block is fixed on one side of the connecting block, the sliding seat is sleeved on the outer side of the sliding block, the connecting pipe is connected with the inner thread of the top end of the sliding seat, the hand wheel is installed at the top end of the connecting pipe, and the fixing block is fixed at the bottom end of the connecting pipe. Through opening two sets of hand wheels of side door rotation, make the hand wheel rotate the connecting pipe drive the fixed block and move the inside of leaving the slider through threaded engagement, be convenient for to one side pulling water tank drive slider roll-off slide through the connecting block dismantle, be convenient for clear up the change to solution in the water tank, then drive the slider and insert the slide and slide the reset after will clearing up the change solution, drive the fixed block through reverse rotation connecting pipe and move down into in the slider, be convenient for support the slider fixedly, guarantee the steadiness of water tank.

Preferably, the water tank is connected with the slider through the connecting block, makes the slider support through the connecting block of being connected with the water tank, and the water tank of being convenient for drives the slider and reciprocates, the slide is welding integrated structure with the purifying box, strengthens the connection effect of slide and purifying box and first baffle, prevents that the slide from droing.

Preferably, the water tank forms a sliding structure through the sliding block and the sliding seat, so that the water tank drives the sliding block to slide back and forth along the inner wall of the sliding seat through the connecting block, flexible disassembly and assembly are facilitated, the connecting blocks are symmetrically distributed on two sides of the water tank, and the symmetrically distributed connecting blocks ensure the balance of the water tank.

Preferably, the outer side wall of the connecting pipe is provided with external threads, and the inner part of the sliding seat is provided with internal threads matched with the external threads. The hand wheel rotates the connecting pipe to move up and down along the inner wall of the sliding seat through threaded engagement, so that the fixing block is driven to leave or enter the sliding block to be detached or fixed.

Preferably, the second turntable, the third turntable and the fourth turntable are respectively in a welding integrated structure with the rotating shaft, so that the second turntable, the third turntable and the fourth turntable are respectively connected with the rotating shaft, the second turntable, the third turntable and the fourth turntable are convenient to rotate along with the rotation of the rotating shaft, the first turntable and the material guiding port are positioned on the same vertical line, and the liquid draining port is convenient to introduce alkaline dry powder into the first turntable.

Preferably, the first rotating disc is communicated with the second rotating disc through the first guide pipe, so that the first rotating disc is convenient for leading the dry powder which is more than the first rotating disc into the second rotating disc through the first guide pipe, the servo motor penetrates through the purifying box to be connected with the rotating shaft, the servo motor penetrates through the purifying box to drive the rotating shaft to rotate, and the rotating shaft is convenient for uniformly scattering the dry meal in the first rotating disc, the second rotating disc, the third rotating disc and the fourth rotating disc.

(III) beneficial effects

Compared with the prior art, the utility model has the beneficial effects that: this tubular furnace tail gas purification device is rational in infrastructure, has following advantage:

(1) Filling alkaline dry powder into the first rotary table through the material guide opening, and then sequentially filling and stopping the second rotary table, the third rotary table and the fourth rotary table through the first guide pipe, the second guide pipe and the third guide pipe, and driving the first rotary table, the second rotary table, the third rotary table and the fourth rotary table to rotate through the rotating shaft by starting the servo motor so as to uniformly scatter the alkaline dry powder contained in the device into the air, thereby realizing the function of facilitating material scattering of the device, improving the functionality of the device, facilitating ensuring the denitration effect and preventing insufficient contact between direct lead-in accumulation of the alkaline dry powder and tail gas;

(2) The side doors are opened to hold the two groups of hand wheels in sequence, the connecting pipes are rotated, the fixing blocks are driven to leave the sliding blocks through threaded engagement, the water tank is pulled forward to drive the sliding blocks to slide out of the sliding seats to detach, clean and replace, then the water tank drives the sliding blocks to be inserted into the sliding seats to slide and reset after cleaning and replacing solutions, the fixing blocks are driven to enter the sliding blocks to prop against and fix the sliding blocks through the reverse rotation connecting pipes, and stability of the water tank is guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic cross-sectional elevation view of the present utility model;

FIG. 2 is a schematic elevational view of the present utility model;

FIG. 3 is a schematic view of an elevation cross-sectional structure of a disassembled structure of the present utility model;

fig. 4 is a schematic cross-sectional elevation view of the bulk material mechanism of the present utility model.

Reference numerals in the drawings illustrate: 1. a purifying box; 2. disassembling the structure; 201. a connecting block; 202. a slide block; 203. a slide; 204. a fixed block; 205. a connecting pipe; 206. a hand wheel; 3. a water tank; 4. a first separator; 5. a spreading mechanism; 501. a servo motor; 502. a rotating shaft; 503. a first turntable; 504. a first conduit; 505. a second turntable; 506. a second conduit; 507. a third turntable; 508. a third conduit; 509. a fourth turntable; 6. a denitration chamber; 7. a liquid outlet; 8. a impurity removal chamber; 9. an air inlet pipe; 10. a negative pressure fan; 11. a filter screen; 12. folding the tube; 13. a water pump; 14. a water pipe; 15. an atomizing nozzle; 16. a second separator; 17. a material guiding port; 18. an air duct; 19. a hose; 20. and an exhaust port.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by one of ordinary skill in the art without inventive faculty, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Example 1

Referring to fig. 1-4, the utility model provides a tubular furnace tail gas purifying device, which comprises a purifying box 1, a denitration chamber 6 and a impurity removal chamber 8, wherein a disassembly structure 2 is arranged on the inner wall of one side of the purifying box 1, a water tank 3 is fixed on one side of the disassembly structure 2, a first partition board 4 is fixed on the inner wall of the purifying box 1, an air duct 18 is arranged at the top end of one side of the first partition board 4, one side of the air duct 18 is connected with a hose 19, the denitration chamber 6 is arranged in the purifying box 1, a material spreading mechanism 5 is arranged in the denitration chamber 6, the impurity removal chamber 8 is arranged in one side of the purifying box 1, an air inlet pipe 9 is fixed at the bottom end of one side of the impurity removal chamber 8, a negative pressure fan 10 is arranged in the air inlet pipe 9, a filter screen 11 is arranged in the other side of the impurity removal chamber 8, a second partition board 16 is arranged on one side of the filter screen 11, a liquid outlet 7 is arranged at one end of the bottom end of the purifying box 1, the top of one side of the purifying box 1 is provided with the water pump 13, the top of the other side of the purifying box 1 is fixedly provided with the exhaust port 20, one side of the water pump 13 is connected with the folding pipe 12, one side of the top of the water pump 13 is connected with the water pipe 14, the bottom of the water pipe 14 is provided with the atomizing nozzle 15, the top of the purifying box 1 is fixedly provided with the material guiding port 17, the material scattering mechanism 5 comprises a servo motor 501, a rotating shaft 502, a first rotating disk 503, a first guide pipe 504, a second rotating disk 505, a second guide pipe 506, a third rotating disk 507, a third guide pipe 508 and a fourth rotating disk 509, the servo motor 501 is arranged at the top of the purifying box 1, the bottom of the servo motor 501 is provided with the rotating shaft 502, the outer side of the rotating shaft 502 is fixedly provided with the first rotating disk 503, the inner part of one side of the first rotating disk 503 is fixedly provided with the first guide pipe 504, the bottom of the first guide pipe 504 is provided with the second rotating disk 505, the inner part of one side of the second rotating disk 505 is fixedly provided with the second guide pipe 506, and the bottom of second pipe 506 is provided with third carousel 507, and the inside of third carousel 507 one side is fixed with third pipe 508, and the bottom of third pipe 508 is provided with fourth carousel 509, and second carousel 505, third carousel 507 and fourth carousel 509 are welded integrated structure with pivot 502 respectively, and first carousel 503 is located same perpendicular line with guide port 17, and first carousel 503 is linked together with second carousel 505 through first pipe 504, and servo motor 501 passes purifying box 1 and is connected with pivot 502.

The working principle of the tubular furnace tail gas purifying device based on the first embodiment is as follows: placing the device at a designated position and externally connecting a power supply, accelerating the speed of introducing the tail gas of the tubular furnace into the impurity removing chamber 8 from the air inlet pipe 9 by starting the negative pressure fan 10, then lifting the introduced tail gas to pass through the filter screen 11 for dust impurity filtration, simultaneously starting the water pump 13 to extract an external water source to be introduced into the water delivery pipe 14 through the folding pipe 12, enabling the multiple groups of atomizing nozzles 15 below the water delivery pipe 14 to atomize and spray water to contact and adsorb particles in the tail gas, so as to enable the particles to descend, thereby achieving the effect of dust removing on the lifted tail gas, then opening the electromagnetic valve on the liquid outlet 7 to enable the mixed solid particles or dust sewage to be discharged from the liquid outlet 7, enabling the tail gas after impurity removal to pass through multiple groups of holes on the second partition board 16 to enter the denitration chamber 6 for denitration, enabling the tail gas after denitration to pass through the air guide pipe 18 for opening the valve to be introduced into the water tank 3 through the hose 19, meanwhile, the hose 19 stretches into the position below the liquid level of the denitration catalyst solution in the water tank 3, so that the tail gas and the denitration catalyst in the water tank 3 react conveniently to improve the denitration reaction efficiency, thereby achieving the effect of rapid denitration, then the gas after denitration purification is discharged from the exhaust port 20, when the tail gas is required to be subjected to denitration, alkaline dry powder is poured into the first rotary table 503 through the material guide port 17 to be filled, the alkaline dry powder continuously introduced into the first rotary table 503 is introduced into the second rotary table 505 through the first guide pipe 504, the second rotary table 505 after the dry powder is filled continuously introduces the excessive dry powder into the third rotary table 507 through the second guide pipe 506, then the third rotary table 507 is introduced into the fourth rotary table 509 through the excessive dry powder through the third guide pipe 508 until the first rotary table 503, the second rotary table 505, the third rotary table 507 and the fourth rotary table 509 are respectively filled with the alkaline dry powder through the visible window on the purifying box 1 to stop, the rotating shaft 502 is driven to rotate by starting the servo motor 501, and then the first rotating disc 503, the second rotating disc 505, the third rotating disc 507 and the fourth rotating disc 509 rotate along with the rotation of the rotating shaft 502, so that alkaline dry powder contained in the interior is uniformly rotated and scattered into the air, the alkaline dry powder is fully contacted with tail gas after impurity removal, and the effect of tail gas denitration is ensured.

Example two

The embodiment comprises the following steps: the disassembly structure 2 comprises a connecting block 201, a sliding block 202, a sliding seat 203, a fixed block 204, a connecting pipe 205 and a hand wheel 206, wherein the connecting block 201 is fixed at the top ends of two sides of the water tank 3, the sliding block 202 is fixed on one side of the connecting block 201, the sliding seat 203 is sleeved on the outer side of the sliding block 202, the connecting pipe 205 is connected with the internal thread of the top end of the sliding seat 203, the hand wheel 206 is installed at the top end of the connecting pipe 205, the bottom end of the connecting pipe 205 is fixed with the fixed block 204, the water tank 3 is connected with the sliding block 202 through the connecting block 201, the sliding seat 203 and the purifying box 1 are in a welding integrated structure, the water tank 3 and the sliding seat 203 form a sliding structure, the connecting block 201 is symmetrically distributed on two sides of the water tank 3, external threads are arranged on the outer side wall of the connecting pipe 205, and the inner part of the sliding seat 203 is provided with internal threads matched with the external threads.

In this embodiment, when the solution in the water tank 3 needs to be cleaned and replaced, the side doors are opened to sequentially rotate the two groups of handwheels 206, so that the handwheels 206 rotate the connecting pipe 205 to drive the fixing block 204 to gradually move upwards away from the inside of the sliding block 202 through threaded engagement, then the water tank 3 is pulled to one side to drive the sliding block 202 to slide out of the sliding seat 203 through the connecting block 201, so that the effect of disassembling the water tank 3 from the purifying tank 1 is achieved, the solution in the water tank 3 is cleaned and replaced conveniently, then the water tank 3 drives the sliding block 202 to be inserted into the sliding seat 203 to slide and reset after the solution is cleaned and replaced, the fixing block 204 is driven to gradually move downwards into the sliding block 202 through the reverse rotation of the connecting pipe 205, the fixing block 204 is enabled to support and fix the sliding block 202, and the stability of the water tank 3 is guaranteed.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present utility model without undue burden.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (7)

1. The utility model provides a tubular furnace tail gas purification device, includes purifying box (1), denitration room (6) and edulcoration room (8), its characterized in that: the purifying device is characterized in that a disassembly structure (2) is arranged on the inner wall of one side of the purifying box (1), a water tank (3) is fixed on one side of the disassembly structure (2), a first partition board (4) is fixed on the inner wall of the purifying box (1), an air duct (18) is arranged at the top end of one side of the first partition board (4), and a hose (19) is connected to one side of the air duct (18);

the inside of purifying box (1) has seted up denitration chamber (6), and the inside of denitration chamber (6) is provided with broadcasting mechanism (5), impurity removal room (8) have been seted up to the inside of purifying box (1) one side, the bottom mounting of impurity removal room (8) one side has intake pipe (9), and the internally mounted of intake pipe (9) has negative pressure fan (10), the internally mounted of impurity removal room (8) has filter screen (11), and installs second baffle (16) on one side of filter screen (11), fluid-discharge opening (7) are installed to the one end of purifying box (1) bottom, water pump (13) are installed on the top of purifying box (1) one side, the top of purifying box (1) opposite side is fixed with gas vent (20);

one side of water pump (13) is connected with folding pipe (12), one side on water pump (13) top is connected with raceway (14), and atomizer (15) are all installed to the bottom of raceway (14), the top of purifying box (1) is fixed with guide mouth (17), broadcast material mechanism (5) include servo motor (501), pivot (502), first carousel (503), first pipe (504), second carousel (505), second pipe (506), third carousel (507), third pipe (508) and fourth carousel (509), pivot (502) are installed on the top of purifying box (1) to servo motor (501), and pivot (502) are installed to the bottom of servo motor (501), and the outside of pivot (502) is fixed with first carousel (503), the inside of first carousel (503) one side is fixed with first pipe (504), and the bottom of first pipe (504) is provided with second carousel (505), the inside of second (505) one side is fixed with second pipe (506), and the bottom of second pipe (506) is provided with third carousel (507) and third carousel (507) is fixed with inside one side of carousel (507), the bottom end of the third conduit (508) is provided with a fourth turntable (509).

2. A tubular furnace exhaust gas purifying apparatus according to claim 1, wherein: the disassembly structure (2) comprises a connecting block (201), a sliding block (202), a sliding seat (203), a fixed block (204), a connecting pipe (205) and a hand wheel (206), wherein the connecting block (201) is fixed at the top ends of two sides of the water tank (3), one side of the connecting block (201) is fixedly provided with the sliding block (202), the sliding seat (203) is sleeved on the outer side of the sliding block (202), the connecting pipe (205) is connected with internal threads of the top end of the sliding seat (203), the hand wheel (206) is installed at the top end of the connecting pipe (205), and the fixed block (204) is fixed at the bottom end of the connecting pipe (205).

3. A tubular furnace exhaust gas purifying apparatus according to claim 2, wherein: the water tank (3) is connected with the sliding block (202) through the connecting block (201), and the sliding seat (203) and the purifying box (1) are in a welding integrated structure.

4. A tubular furnace exhaust gas purifying apparatus according to claim 2, wherein: the water tank (3) and the sliding seat (203) form a sliding structure through the sliding block (202), and the connecting blocks (201) are symmetrically distributed on two sides of the water tank (3).

5. A tubular furnace exhaust gas purifying apparatus according to claim 2, wherein: external threads are arranged on the outer side wall of the connecting pipe (205), and internal threads matched with the external threads are arranged inside the sliding seat (203).

6. A tubular furnace exhaust gas purifying apparatus according to claim 1, wherein: the second turntable (505), the third turntable (507) and the fourth turntable (509) are respectively in a welding integrated structure with the rotating shaft (502), and the first turntable (503) and the material guide opening (17) are positioned on the same vertical line.

7. A tubular furnace exhaust gas purifying apparatus according to claim 1, wherein: the first rotary table (503) is communicated with the second rotary table (505) through a first guide pipe (504), and the servo motor (501) penetrates through the purifying box (1) to be connected with the rotating shaft (502).